Mowing-machine.



No. 838,964. I PATBNTED DEG. 18, 1906l G. ROBINSON & G. GUTSFORTH.

MOWING MACHINE.

APPLIOATION FILED MAY 26, 1906.

2 smug-SHEET 1.

w/ Ess/ fs J /NVE/voms I :f /1 r /f i GEORGE Roel/vso l 6450A???Ours/raar@ ATTORNEYS /lul fumi

No. 838,904. i PATENTED DEC. 18, 1906. G.- ROBINSON & G. GUTSPORTH.

MOWING MACHINE.

APPLICATION FILED MAY 2s, 190e..

2 SHEETS-SHEET 2.

W/TNESSES r, /3 f 'f r y EoRGs By Uur's'FoRv-H Olaya...

ATTORNEYS UNITED sTATEs lPATENT OEEIOE.

GEORGE ROBINSON AND GEORGE OUTSFORTH,DOF RIDDLES, OREGON.MowlNe-MAOHINE.

Specification of Letters Patent. y

Patented D ec. 18, 1906.

Application iiled May 26.1906. 'Serial Nol 318,844.

' To all whom t may concern: v

Be it known that we, GEORGE ROBINSON' ing-machines, and relatesparticularly to aA track-clearing attachment whereby heavy vines andgrasses may be cut at the outer end of the sickle-bar to avoid cloggingof the bar and to aid the divider in separating the cut from the uncutgrass and the invention consists in certain novel constructions andcombinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure l is a perspective View of our invention as inuse. Fig. 2 is a rear elevation of the outer end of the cutterbarprovided with our improved apparatus, parts being broken away. Fig. 3 isa sectional side elevation of the upright cutter, and Fig. 4 is a detailview of one of the upright or vertical sickles.

In carrying 'out the invention it will be noticed that the improvementsare applied to a finger-bar A, receiving a sickle B, and these parts maybe constructed and arranged to operate in the usual manner, suitablemeans being provided for operating the sickle B, and the latter havingat its inner end a lug B or other suitable means for the connection of apitman O for operating the vertical sickles, in the manner presentlydescribed, as the sickle B is reciprocated by the usual operating means.

At the outer end of the finger-bar a divider D is provided, and upon theouter end of the finger-bar is mounted the frame E for the verticalsickles. This frame Ois provided at its lower end with a foot E4, whichmay be bolted upon the finger-bar, and the upright frame E, being thussecurely held in place, has its back plate E, provided with theforwardly-projecting lugs or bars E2, whose front ends E3 are turnedinwardly to lap along the front sides of the sickle-bars F, to 'whichthe blades F of the vertical sickles are secured. By this means thevertical sickles are held to the upright frame-bar, so they may bereciprocated and still bear at their rear edges against the plate E, sothey may be guided accurately in their vertical movements. At theirupper ends the vertical sickle-bars are turned to form eyes F2, in whichare i'itted-the forwardly-projecting studs G on the links G, whichconnect the vertical sickles with the lateral arms H of the rocker H,which is pivoted at the juncture of the arms H with the depending armH2, the latter being connected by the pitman O with the reciprocatinghorizontal sicklebar, as before described. By the described constructionit will be noticed the vertical cutter may have its sickles operatereciprocally to cut the thick heavy vines at the outer end of thecutting apparatus. It will be noticed that the entire front edges of theblades F of the vertical sickles are sharpened, and theA sickles are soarranged and operated'as to avoid the overlapping or overriding of theblades, they being operated by the rockers only to the extent oftwo-thirds of the distance across each blade. By reason of this it willbe seen that at no time does the edge of one blade pass the edge of theother blade, so that we are able to prevent the overlapping of theblades and to provide for cutting in each operation of the sickle.Further, by making the blades with all sharp edges, as shown, they canbe ground onanordinary grindstone or sicklerinder.l

The pitman O, w ich extends above the horizontal sickle and extends on astraight line to the head on the lug B, is provided on its upper sidewith a series of teeth O, whose sides O2 facing inwardly or toward themain frame of the machine are approximately square, and whose oppositesidesO3 are inclined so that as the pitman moves inwardly it will drawthe cut swath toward the main frame or carriage of the machine and thenon the outward movement of the pitman will slip below the swath, thuskeeping the out grass, vines, &c., away from the trackclearer and aidingthe latter in separating the cut from the uncut material.

The frame E for the upright sickle being provided with the foot-pieceE"L facilitates the application of the improvement to mowers of theordinary construction.

The vines and grasses grow to considerable heights in some localities,and we End it better to bring the vines down to the vertical sicklesthan to extend said sickles up beyond a reasonable height. To this endwe provide a depressing-arm Lwhich is secured at l to the upper end ofthe frame E and inclines forwardly toward its upper end, extending to asuflicient height to override the IOO IIO

tall vines, &c. This arm I preferably has the parallel side bars I2, andbetween these bars I2 we provide a series of antifriction-rollers L3,which are disposed vertically edgewise and are journaled in thedepressing-arm and are arranged each to overlap the adjacent rollersandto project at their free edges below the lower or forward edge of theupwardly-inclined arm I, thus producing an antifriction-surface whichextends from the upper end of the depressing-arm practically to thevertical cutters and facilitates the depression of the heavy vines, &c.,and avoids any dragging action of said vines along the lower edge of thearm, thus preventing compacting of the vines into a mass and draggingsuch vines and grass downwardly to the vertical cutters and enabling theuse of a short auxiliary vertical cutter. A short cutter is desirablefor several reasons. In the first place, it reduces weight and providesfor a satisfactory operation by preventing the wabbling and vibrating ofthe cutter, &c., which would result from its extreme height. Thedepressing-arm with the antifriction-rollers is also desirable in thatit has a tendency to ride up on the vines or other heavy growth, and sooperates with a lifting action at the outer end of the cutterbar.

We claiml. A mowing-machine having a horizontal sickle and a cutter atits outer end and coinposed of vertical sickle-bars, a frame in whichsaid sickle-bars may be reciprocated, the bars being provided at theirupper ends with eyes, a rocker having lateral arms and links connectingthe same with the eyes of the vertical cutters, said rocker having alsoa depending arm and being pivotally supported at the juncture of itslateral and depending arms, a pitman connected with said depending armsand provided on its upper side with teeth inclined on their outer sidesand approximately upright and square on their inner sides whereby theymay operate upon the cut grass, &c., and connections between said pitmanand the horizontal sickle-bar, substantially as set forth.

2. A mowing-machine having a main sickle, a supplemental vertical cutterat the outer end of the main sickle, and a depressing-arm incliningupwardly and forwardly from the supplemental sickle and provided with aseries of antifriction-rollers projecting beyond its lower or frontedge, substantially as set forth.

3. The combination with the vertical sicklebars and their blades, of thevertical frame for said bars having a back plate andforwardly-projecting lugs having their front ends inturned to overlapthe front edges of the vertical sickle-bars, the depressor-arm havingits side bars lapping along the opposite sides of the upper ends of thevertical sickles and secured to the frame therefor, and means forreciprocating the vertical sickles, substantially as set forth.

4. A mowing-machine having a horizontal sickle, a vertical cutter at theouter end thereof, a pitman for operating the vertical cutter, andextending above the horizontal y sickle, and provided with teethinclined on their outer sides and square on their inner sides whereby tooperate upon the cut material, and connections whereby the said pitmanmay be operated, substantially as set forth.

5. A vertical supplemental cutter for mowing-machines having an upwardlyand forwardly projecting depressor-arm provided with projectingantifriction-rollers, substantially as set forth.

GEORGE ROBINSON. GEORGE OUTSFORTH. Witnesses:

W. H. SUMMERs, IRA B. RIDDLE.

